Arndt, P. P.
Bandung: A.C. Inc. & Co., 1933
Buku Teks
Kahler, Hans, 1912-, author
Wiesbaden Otto Harrassowitz 1956
Buku Teks
Schulz, Hans
Munchen: Max Hueber, 1959
Buku Teks
Fanselow, Gisbert
Tubingen Francke 1987
Buku Teks
Brockelmann, Carl
Hildesheim George Olms 1961
Buku Teks